Reinforced interlocking concrete wall.



PATENTED DEC. 17, 1907.

EDMONDSON. REINFORCED INTERLOOKING CONCRETE WALL.

APPLICATION FILED MAY 18, 1907.

4O 1 continuous w'al UNITED STATES. PATENT OFFICE.

ROBERT EDMONDSON, OF SOUTH BEND,=INDIANA.

REINFORCED INTERLOGKING coNcEE'rE wALI'...

. Specification of Letters Patent.

Patented Dec. 17, 1907.

Application filed May 18. 1907- Serial No. 374.365.

T 0 all 'whom i t may concern:

Be it known that I ROBERT EDMONDSON,

a citizen of the United States, residing at South Bend, in the county ofSt; Joseph and State of Indiana, have invented certam new and .usefulImprovements in Reinforced Interlocking Concrete Walls, of which thefollowing is aspecification.

This invention relates to reinforced inter,

locking concrete walls.

One ob ect of the invention is to provide a reinforced mterlockmgconcrete wall embodvin such characteristics that moisture and frostcannot penetrate through the wall.

Another object resides in the provision of a reinforced concrete wallconstructed to withstand intense heat in the event of a fire, andtherebyprevent collapsing of the wall incident to heat due to fire.

With the above and other objects in view, the presentinvention consistsin the combination and arrangement of parts hereinafter more fullydescribed, illustrated in' the accompanying drawings, and particularlypointed'out in the appended claims, it being understood that changes maybe made in the form, size, proportion, and minor details withoutdeparting from the spirit or-sacrificmg any of the advantages thereof.

In the draw ngs z-F1gure 1 1s a horizontal sectional view of a corner ofa structure embodying my invention. "mentary perspective view of aportion of a wall illustrating my invention. Referring now moreparticularly to the accompanying drawings, the reference character 1indicates a concrete or other ce1nenti-.

tious wall which is preferably tamped and 4 built up in molds to providea continuous wall without 1 oints. Molds for building s without jointsare old and common and in this application I am not prevent moisture or0st from penetrating Fig. 2 is a frag-.

air space be-' entirely through thewall. The spacing of these membersmay be effected by the disposition between them of a sheet of asbestos4, which I prefer to .be corrugatedso as to hold the metallic members inspaced relation and also to provide the dead air space between themembers to obviate the possibility of moisture or frost penetrating thewall beyond the first or outer metallic member.

By virtue' of the outer metallic member water cannot possibly leak intothe dead air space.

Concrete deteriorates easily under intense heat and it is for thisreason that I prefer to employ an asbestos filling. The asbestos fillinis a non-conductor and protects the inner half of the wall from heat incase of fire. If g.

the outer surface of the wall should crumble or collapse incident tointense heat the inner portion of the wall'wouldremain intact, therebypreventing the entire building from collapsing. It is obvious thatif-the outer wall should crumble fromthe effects of heat that the samecould be easily and rapidly re-- paired, the interlocking membersholding the re air material in place.

t will be understood that each plate 2 and 3 may be formed in separatepieces or in one piece, as

separate pieces that at the corners 'of the structure each corner platewould preferably consist ofone piece extending around the corner of thebuilding.

(hat is claimed is 1. A reinforced concrete wall comprising cementitiousmaterial, interlocking metallic reinforcing members embedded in thewall,

each member being of dovetail corrugated formation in cross section andfitting one within the other, and means arranged bev tween the metallicmembers to provide a dead air space between the latter.

2. A'reinforced interlocking concrete wall comprising cementitiousmaterial, metallic rem orcmg members embedded lnthe wall, each memberbeing of dovetail corrugated formation in cross section and fitting onewithin the other, andcorrugated asbestos arranged between the metallicmembers to provide a dead air space between the latter.

'3. A wall comprising sheet metal members spaced apart and arranged inalternating dovetailed channels and ribs, with the chanr" nels and ribsof one member interlocking withthe channels and ribs of the other memmaybe preferred. It will also be 85 understood that if each plate is formedof ber, sheets of asbestos bent to conform to the name to thisspecification in the presence of gnfiguriattion of th}: spac'edmeltalplates and two subscribing Witnesses.

'spose etweent esame, an cementitious v material applied to the outerfaces of the ROBERT EDMONDSON' 5 ribs of the metal members and withinthe Witnesses:

dovetailed interstices therebetween. GEORG OLTscH,

testimony whereof I have signed my' G. M.'COLE.

